Conor McGregor has posted about his royal family roots as his fight with Rafael dos Anjos was confirmed for UFC 197 in Las Vegas.

'The Notorious' believes that all other fighters must bow before him or there will be consequences.

It was announced on Tuesday evening that UFC 197 will be co-headlined by two highly anticipated title fights: Rafael dos Anjos vs McGregor for the UFC lightweight belt, and Holly Holm vs Miesha Tate for the women’s bantamweight title.

Conor posted on Twitter this morning: "I am simply doing what my ancestors were doing long before me.

"They must bow before me or face the consequences."

The Dubliner's family crest Clan MacGregor originally hails from Scotland.

Their motto is "Royal is my race" or S Rrioghal Mo Dhream.

The family are thought to have descended from an ancient Celtic royal family.

A year ago, Conor was asked in a press conference if he would take advice from Rafael dos Anjos who encouraged him to stay in the featherweight division.

McGregor responded by saying he had a long memory and would come to get the Brazilian after he beat Jose Aldo.

Now that prediction from 'Mystic Mac' is only two months away from frutiion.

The Irishman will be looking to mimic what he accomplished in the European promotion, Cage Warriors, when he held both the featherweight and lightweight belts simultaneously.

(Image: Getty)

Should McGregor be successful against Dos Anjos, he will be the first fighter in UFC history to hold two belts at the same time. BJ Penn and Randy Coture both won UFC championship gold in two weight classes but never held the titles at the same time.

His opponent, Dos Anjos, however, is not a man to be taken lightly as he also had a very successful 2015.

He defeated Anthony Pettis last March to capture the lightweight title and defended it successfully against Donald Cerrone last month, just one week after McGregor defeated Aldo.

Like McGregor, Dos Anjos took little to no damage in his title defence, finishing Cerrone in just 66 seconds.